MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm hosted on compromised CMS upload storage, directing users to various unknown PDF files. The embedded URLs, while numerous, do not appear to be directly executable but serve as a lure to potentially malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://jowinbio.com/upload/files/202109130356323684.pdf In PDF document text
- http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134b12985a53---raxugudamux.pdfIn PDF document text
- https://zweefvlieg.net/userfiles/file/mimaxo.pdfIn PDF document text
- http://pinzimoniofiumicino.eu/userfiles/files/85155360116.pdfIn PDF document text
- https://xn--90aoja6ahg5ds.xn--p1ai/uploads/files/pozopuzoxulaxav.pdfIn PDF document text
- https://mountainbrookbuilders.com/home/mountain/public_html/ckfinder/userfiles/files/86720329253.pdfIn PDF document text
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1613f18668169e---mudubitimet.pdfIn PDF document text
- http://jumpinfit.it/userfiles/files/xonixulixusudole.pdfIn PDF document text
- http://fsoa.cn/userfiles/file/vozuzavuvitufelitalu.pdfIn PDF document text
- https://debo-fit.be/userfiles/file///ropozedivilokijib.pdfIn PDF document text
- http://www.omt.ntou.edu.tw/ckfinder/userfiles/files/zukidupagugadijitora.pdfIn PDF document text
- https://stop-remont.ru/ckfinder/userfiles/files/42673889701.pdfIn PDF document text
- http://bielle-srl.com/userfiles/files/bavijoxixozijufak.pdfIn PDF document text
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146f298704eb---38742252366.pdfIn PDF document text
- http://optimumnieruchomosci.pl/uploads/userfiles/files/4093222889.pdfIn PDF document text
- https://pensionradvanice.cz/res/file/49689577263.pdfIn PDF document text
- https://edinburghpools.com/contents/files/48590747934.pdfIn PDF document text
- http://americansemitruckparts.com/d/files/rasikupelid.pdfIn PDF document text
- http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/22e4098162350ac64cce281d28461885/56369878103.pdfIn PDF document text
- http://raczcsalad.hu/files/58822198033.pdfIn PDF document text
- https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/tmp/gunofegadedixatowoku.pdfIn PDF document text
- http://controldellaves.com/app/webroot/arxius/file/dusubijapunipazot.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=bluetooth+ipad+to+androidPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ae7c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE7C | 10472 bytes |
SHA-256: 57725438a1ca4d94a1dfb252fecab9a2294867c0a902bbb6747895bfefbcf5ba |
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font_01_sfnt_off0000c630.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC630 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000de42.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE42 | 14984 bytes |
SHA-256: 0e23c489f31652312baf58833e61e5c15b793d4b8db75ad18f23f77d5250ac0e |
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